[12] The Serb army first entered Ottoman territory inhabited by ethnic Albanians in October 1912 as part of its campaign in the then-ongoing First Balkan War.
The Serbian army met with strong Albanian guerrilla resistance, led by Isa Boletini, Azem Galica and other military leaders.
[15] During the occupation, the Serbian army committed numerous crimes against the Albanian population "with a view to the entire transformation of the ethnic character of these regions.
[14] Following the signing of the Treaty of London in May 1913 which awarded new lands to Serbia, including most of the former Vilayet of Kosovo, the Serbian government agreed to withdraw its troops from outside of its newly expanded territory.
On 18 November 1912, after a successful uprising and 10 days prior to the Albanian Declaration of Independence, local Maj. Spyros Spyromilios expelled the Ottomans from the Himara region.
After the Great Powers agreed on the terms of the Protocol of Florence in December 1913, Greece was forced to retreat from the towns of Korçë, Gjirokastër and Sarandë and the surrounding territories.